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authorKarl Berry <karl@freefriends.org>2013-04-13 22:56:07 +0000
committerKarl Berry <karl@freefriends.org>2013-04-13 22:56:07 +0000
commit658facdfe16a2d2b43c7312b9b15bebbf3c89d8e (patch)
tree6b219a6bd62fa7eda6d3aa87fccf509cc3fc7191 /Master/texmf-dist/tex/latex/hobby/hobby.code.tex
parent5ffaf0fed7a947071a4ad491d01164a10e97b7ed (diff)
hobby (13apr13)
git-svn-id: svn://tug.org/texlive/trunk@29895 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/latex/hobby/hobby.code.tex')
-rw-r--r--Master/texmf-dist/tex/latex/hobby/hobby.code.tex419
1 files changed, 341 insertions, 78 deletions
diff --git a/Master/texmf-dist/tex/latex/hobby/hobby.code.tex b/Master/texmf-dist/tex/latex/hobby/hobby.code.tex
index 70555c1973c..18c3409d5a3 100644
--- a/Master/texmf-dist/tex/latex/hobby/hobby.code.tex
+++ b/Master/texmf-dist/tex/latex/hobby/hobby.code.tex
@@ -18,6 +18,8 @@
\RequirePackage{pml3array}
\ExplSyntaxOn
\cs_generate_variant:Nn \fp_set:Nn {Nx}
+\cs_generate_variant:Nn \tl_if_eq:nnTF {VnTF}
+\cs_generate_variant:Nn \tl_if_eq:nnTF {xnTF}
\fp_new:N \g_hobby_parama_fp
\fp_new:N \g_hobby_paramb_fp
\fp_new:N \g_hobby_paramc_fp
@@ -32,6 +34,7 @@
\array_new:N \l_hobby_points_array
\array_new:N \l_hobby_points_x_array
\array_new:N \l_hobby_points_y_array
+\array_new:N \l_hobby_actions_array
\array_new:N \l_hobby_angles_array
\array_new:N \l_hobby_distances_array
\array_new:N \l_hobby_tension_out_array
@@ -64,34 +67,79 @@
\fp_new:N \l_hobby_out_angle_fp
\fp_set_eq:NN \l_hobby_out_angle_fp \c_undefined_fp
\int_new:N \l_hobby_npoints_int
+\int_new:N \l_hobby_draw_int
\keys_define:nn {hobby / read in all} {
x .fp_set:N = \l_hobby_tempa_fp,
y .fp_set:N = \l_hobby_tempb_fp,
tension~out .fp_set:N = \l_hobby_tempc_fp,
tension~in .fp_set:N = \l_hobby_tempd_fp,
excess~angle .fp_set:N = \l_hobby_temps_fp,
+ break .tl_set:N = \l_tmpb_tl,
+ blank .tl_set:N = \l_tmpa_tl,
tension .meta:n = { tension~out=#1, tension~in=#1 },
+ break .default:n = false,
+ blank .default:n = false,
+ invert~soft~blanks .choice:,
+ invert~soft~blanks / true .code:n = {
+ \int_gset:Nn \l_hobby_draw_int {0}
+ },
+ invert~soft~blanks / false .code:n = {
+ \int_gset:Nn \l_hobby_draw_int {1}
+ },
+ invert~soft~blanks .default:n = true,
tension~out .default:n = 1,
tension~in .default:n = 1,
excess~angle .default:n = 0,
- in~angle .fp_set:N = \l_hobby_in_angle_fp,
- out~angle .fp_set:N = \l_hobby_out_angle_fp,
- in~curl .fp_set:N = \l_hobby_in_curl_fp,
- out~curl .fp_set:N = \l_hobby_out_curl_fp,
- closed .bool_set:N = \l_hobby_closed_bool,
+ in~angle .fp_gset:N = \l_hobby_in_angle_fp,
+ out~angle .fp_gset:N = \l_hobby_out_angle_fp,
+ in~curl .fp_gset:N = \l_hobby_in_curl_fp,
+ out~curl .fp_gset:N = \l_hobby_out_curl_fp,
+ closed .bool_gset:N = \l_hobby_closed_bool,
closed .default:n = true,
- disjoint .bool_set:N = \l_hobby_disjoint_bool,
+ disjoint .bool_gset:N = \l_hobby_disjoint_bool,
disjoint .default:n = true,
+ break~default .code:n = {
+ \keys_define:nn { hobby / read in all }
+ {
+ break .default:n = #1
+ }
+ },
+ blank~default .code:n = {
+ \keys_define:nn { hobby / read in all }
+ {
+ blank .default:n = #1
+ }
+ },
}
\keys_define:nn { hobby / read in params} {
- in~angle .fp_set:N = \l_hobby_in_angle_fp,
- out~angle .fp_set:N = \l_hobby_out_angle_fp,
- in~curl .fp_set:N = \l_hobby_in_curl_fp,
- out~curl .fp_set:N = \l_hobby_out_curl_fp,
- closed .bool_set:N = \l_hobby_closed_bool,
+ in~angle .fp_gset:N = \l_hobby_in_angle_fp,
+ out~angle .fp_gset:N = \l_hobby_out_angle_fp,
+ in~curl .fp_gset:N = \l_hobby_in_curl_fp,
+ out~curl .fp_gset:N = \l_hobby_out_curl_fp,
+ closed .bool_gset:N = \l_hobby_closed_bool,
closed .default:n = true,
- disjoint .bool_set:N = \l_hobby_disjoint_bool,
+ disjoint .bool_gset:N = \l_hobby_disjoint_bool,
disjoint .default:n = true,
+ break~default .code:n = {
+ \keys_define:nn { hobby / read in all }
+ {
+ break .default:n = #1
+ }
+ },
+ blank~default .code:n = {
+ \keys_define:nn { hobby / read in all }
+ {
+ blank .default:n = #1
+ }
+ },
+ invert~soft~blanks .choice:,
+ invert~soft~blanks / true .code:n = {
+ \int_gset:Nn \l_hobby_draw_int {0}
+ },
+ invert~soft~blanks / false .code:n = {
+ \int_gset:Nn \l_hobby_draw_int {1}
+ },
+ invert~soft~blanks .default:n = true,
}
\cs_set:Nn \hobby_distangle:n {
\fp_set:Nn \l_hobby_tempa_fp {
@@ -132,10 +180,11 @@
\hobby_append_point_copy_aux:Nn \l_hobby_tension_in_array {#1}
\hobby_append_point_copy_aux:Nn \l_hobby_tension_out_array {#1}
\hobby_append_point_copy_aux:Nn \l_hobby_excess_angle_array {#1}
+ \hobby_append_point_copy_aux:Nn \l_hobby_actions_array {#1}
}
\cs_new_protected:Npn \hobby_append_point_copy_aux:Nn #1#2
- { \array_push:Nx #1 { \array_get:Nn #1 {#2} } }
-\cs_new:Nn \hobby_genpath:
+ { \array_gpush:Nx #1 { \array_get:Nn #1 {#2} } }
+\cs_new:Nn \hobby_gen_path:
{
\bool_if:NT \l_hobby_closed_bool {
\fp_compare:nTF {(\array_get:Nn \l_hobby_points_x_array {0})
@@ -156,10 +205,69 @@
}
\hobby_append_point_copy:n {1}
}
-\int_set:Nn \l_hobby_npoints_int {\array_length:N \l_hobby_points_y_array}
+\int_gset:Nn \l_hobby_npoints_int {\array_length:N \l_hobby_points_y_array}
+\int_compare:nNnTF {\l_hobby_npoints_int} = {0} {
+}
+{
+ \int_compare:nNnTF {\l_hobby_npoints_int} = {1} {
+\hobby_distangle:n {0}
+\fp_if_undefined:NF \l_hobby_out_angle_fp
+{
+ \fp_set:Nn \l_hobby_tempa_fp { \l_hobby_out_angle_fp
+ - \array_get:Nn \l_hobby_angles_array {0} }
+ \fp_compare:nT {\l_hobby_tempa_fp > \c_pi_fp }
+ {
+ \fp_sub:Nn \l_hobby_tempa_fp {2 * \c_pi_fp}
+ }
+ \fp_compare:nT {\l_hobby_tempa_fp < -\c_pi_fp }
+ {
+ \fp_add:Nn \l_hobby_tempa_fp {2 * \c_pi_fp}
+ }
+ \array_put:Nnx \l_hobby_theta_array {0} {\fp_to_tl:N \l_hobby_tempa_fp}
+ \fp_if_undefined:NT \l_hobby_in_angle_fp
+ {
+ \array_put:Nnx \l_hobby_phi_array {1}{ \fp_to_tl:N \l_hobby_tempa_fp}
+ }
+ }
+\fp_if_undefined:NTF \l_hobby_in_angle_fp
+{
+ \fp_if_undefined:NT \l_hobby_out_angle_fp
+ {
+ \array_put:Nnx \l_hobby_phi_array {1} {0}
+ \array_put:Nnx \l_hobby_theta_array {0} {0}
+ }
+}
+{
+ \fp_set:Nn \l_hobby_tempa_fp { - \l_hobby_in_angle_fp + \c_pi_fp
++ (\array_get:Nn \l_hobby_angles_array {0})}
+ \fp_compare:nT {\l_hobby_tempa_fp > \c_pi_fp }
+ {
+ \fp_sub:Nn \l_hobby_tempa_fp {2 * \c_pi_fp}
+ }
+ \fp_compare:nT {\l_hobby_tempa_fp < -\c_pi_fp }
+ {
+ \fp_add:Nn \l_hobby_tempa_fp {2 * \c_pi_fp}
+ }
-\prg_stepwise_function:nnnN {0} {1} {\l_hobby_npoints_int - 1} \hobby_distangle:n
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
+ \array_put:Nnx \l_hobby_phi_array {1}
+ {\fp_to_tl:N \l_hobby_tempa_fp}
+ \fp_if_undefined:NT \l_hobby_out_angle_fp
+ {
+ \array_put:Nnx \l_hobby_theta_array {0}{ \fp_to_tl:N \l_hobby_tempa_fp}
+ }
+}
+
+ }
+ {
+ \hobby_compute_path:
+ }
+ \hobby_build_path:
+}
+}
+\cs_new:Nn \hobby_compute_path:
+{
+\int_step_function:nnnN {0} {1} {\l_hobby_npoints_int - 1} \hobby_distangle:n
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
\fp_set:Nx \l_hobby_tempa_fp {
\array_get:Nn \l_hobby_angles_array {##1}
- \array_get:Nn \l_hobby_angles_array {##1 - 1}}
@@ -178,14 +286,14 @@
}{}
\array_put:Nnx \l_hobby_psi_array {##1}{\fp_to_tl:N \l_hobby_tempa_fp}
}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
\array_put:Nnx \l_hobby_matrix_a_array {##1} {\fp_to_tl:n {
\array_get:Nn \l_hobby_tension_in_array {##1}^2
* \array_get:Nn \l_hobby_distances_array {##1}
* \array_get:Nn \l_hobby_tension_in_array {##1 + 1}
}}
}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
\array_put:Nnx \l_hobby_matrix_b_array {##1} {\fp_to_tl:n
{(3 * (\array_get:Nn \l_hobby_tension_in_array {##1 + 1}) - 1) *
@@ -199,7 +307,7 @@
* (\array_get:Nn \l_hobby_distances_array {##1})}
}
}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
\array_put:Nnx \l_hobby_matrix_c_array {##1} {\fp_to_tl:n
{(\array_get:Nn \l_hobby_tension_in_array {##1})^2
@@ -208,7 +316,7 @@
}}
}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
\array_put:Nnx \l_hobby_matrix_d_array {##1} {\fp_to_tl:n
{
@@ -253,7 +361,7 @@
}
\array_put:Nnn \l_hobby_vector_u_array {0} {1}
\array_put:Nnn \l_hobby_vector_u_array {\l_hobby_npoints_int - 1} {1}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 2} {
\array_put:Nnn \l_hobby_vector_u_array {##1} {0}
}
\fp_set:Nn \l_hobby_matrix_v_fp {
@@ -365,7 +473,7 @@
* (\array_get:Nn \l_hobby_distances_array {\l_hobby_npoints_int - 1}) }}
}
}
-\prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
+\int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
\array_put:Nnx \l_hobby_matrix_b_array {##1} {\fp_to_tl:n {
(\array_get:Nn \l_hobby_matrix_b_array {##1 - 1})
@@ -409,7 +517,7 @@
/ (\array_get:Nn \l_hobby_matrix_b_array {\l_hobby_npoints_int - 1})
}}
}
-\prg_stepwise_inline:nnnn {\l_hobby_npoints_int - 2} {-1} {0} {
+\int_step_inline:nnnn {\l_hobby_npoints_int - 2} {-1} {0} {
\array_put:Nnx \l_hobby_theta_array {##1} {\fp_to_tl:n {
( (\array_get:Nn \l_hobby_matrix_d_array {##1})
@@ -419,7 +527,7 @@
}}
}
\bool_if:NT \l_hobby_closed_bool {
-\prg_stepwise_inline:nnnn {\l_hobby_npoints_int - 2} {-1} {0} {
+\int_step_inline:nnnn {\l_hobby_npoints_int - 2} {-1} {0} {
\array_put:Nnx \l_hobby_vector_u_array {##1} {\fp_to_tl:n
{
((\array_get:Nn \l_hobby_vector_u_array {##1})
@@ -440,7 +548,7 @@
+ 1
)}
-\prg_stepwise_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
+\int_step_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
\array_put:Nnx \l_hobby_theta_array {##1} {\fp_to_tl:n {
(\array_get:Nn \l_hobby_theta_array {##1})
@@ -449,7 +557,7 @@
}}
}
}
-\prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
+\int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int - 1} {
\array_put:Nnx \l_hobby_phi_array {##1} {\fp_to_tl:n {
- (\array_get:Nn \l_hobby_psi_array {##1})
@@ -457,7 +565,7 @@
}}
}
\bool_if:NTF \l_hobby_closed_bool {
- \int_decr:N \l_hobby_npoints_int
+ \int_gdecr:N \l_hobby_npoints_int
}{
\fp_if_undefined:NT \l_hobby_in_angle_fp
{
@@ -478,7 +586,10 @@
}}
}
}
-\prg_stepwise_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
+}
+\cs_new:Nn \hobby_build_path:
+{
+\int_step_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
\fp_set:Nn \l_hobby_tempa_fp {\array_get:Nn \l_hobby_theta_array {##1}}
@@ -493,9 +604,8 @@
\array_put:Nnx \l_hobby_rho_array {##1} {\fp_to_tl:N \l_hobby_temps_fp}
}
-\prg_stepwise_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
-
-\array_put:Nnx \l_hobby_controla_array {##1 + 1} {x = \fp_eval:n {
+\int_step_inline:nnnn {0} {1} {\l_hobby_npoints_int - 1} {
+\array_gput:Nnx \l_hobby_controla_array {##1 + 1} {x = \fp_eval:n {
(\array_get:Nn \l_hobby_points_x_array {##1})
+
(\array_get:Nn \l_hobby_distances_array {##1}) *
@@ -515,9 +625,8 @@ sin ( (\array_get:Nn \l_hobby_angles_array {##1})
}
}
}
-
-\prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int} {
- \array_put:Nnx \l_hobby_controlb_array {##1} {
+\int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int} {
+ \array_gput:Nnx \l_hobby_controlb_array {##1} {
x = \fp_eval:n {\array_get:Nn \l_hobby_points_x_array {##1}
- (\array_get:Nn \l_hobby_distances_array {##1 - 1})
* (\array_get:Nn \l_hobby_sigma_array {##1})
@@ -533,35 +642,8 @@ sin ( (\array_get:Nn \l_hobby_angles_array {##1})
}
}
\NewDocumentCommand \hobbyinit {m m m} {
-\hobby_set_cmds:nnn#1#2#3
-\array_clear:N \l_hobby_points_array
-\array_clear:N \l_hobby_points_x_array
-\array_clear:N \l_hobby_points_y_array
-\array_clear:N \l_hobby_angles_array
-\array_clear:N \l_hobby_distances_array
-\array_clear:N \l_hobby_tension_out_array
-\array_clear:N \l_hobby_tension_in_array
-\array_clear:N \l_hobby_excess_angle_array
-\array_clear:N \l_hobby_matrix_a_array
-\array_clear:N \l_hobby_matrix_b_array
-\array_clear:N \l_hobby_matrix_c_array
-\array_clear:N \l_hobby_matrix_d_array
-\array_clear:N \l_hobby_vector_u_array
-\array_clear:N \l_hobby_psi_array
-\array_clear:N \l_hobby_theta_array
-\array_clear:N \l_hobby_phi_array
-\array_clear:N \l_hobby_sigma_array
-\array_clear:N \l_hobby_rho_array
-\array_clear:N \l_hobby_controla_array
-\array_clear:N \l_hobby_controlb_array
-\bool_set_false:N \l_hobby_closed_bool
-\bool_set_false:N \l_hobby_disjoint_bool
-
- \int_set:Nn \l_hobby_npoints_int {-1}
- \fp_set_eq:NN \l_hobby_in_angle_fp \c_undefined_fp
- \fp_set_eq:NN \l_hobby_out_angle_fp \c_undefined_fp
- \fp_set_eq:NN \l_hobby_in_curl_fp \c_one_fp
- \fp_set_eq:NN \l_hobby_out_curl_fp \c_one_fp
+ \hobby_set_cmds:nnn#1#2#3
+ \hobby_clear_path:
}
\NewDocumentCommand \hobbyaddpoint { m } {
\keys_set:nn { hobby/read in all }
@@ -569,16 +651,29 @@ sin ( (\array_get:Nn \l_hobby_angles_array {##1})
tension~out,
tension~in,
excess~angle,
+ blank,
+ break,
#1
}
- \array_push:Nx \l_hobby_tension_out_array {\fp_to_tl:N \l_hobby_tempc_fp}
- \array_push:Nx \l_hobby_tension_in_array {\fp_to_tl:N \l_hobby_tempd_fp}
- \array_push:Nx \l_hobby_excess_angle_array {\fp_to_tl:N \l_hobby_temps_fp}
- \array_push:Nx \l_hobby_points_array {
+ \tl_if_eq:VnTF {\l_tmpa_tl} {true}
+ {\tl_set:Nn \l_tmpa_tl {2}}
+ {
+ \tl_if_eq:VnTF {\l_tmpa_tl} {soft}
+ {\tl_set:Nn \l_tmpa_tl {0}}
+ {\tl_set:Nn \l_tmpa_tl {1}}
+ }
+ \tl_if_eq:VnTF {\l_tmpb_tl} {true}
+ {\tl_put_right:Nn \l_tmpa_tl {1}}
+ {\tl_put_right:Nn \l_tmpa_tl {0}}
+ \array_gpush:Nx \l_hobby_actions_array {\l_tmpa_tl}
+ \array_gpush:Nx \l_hobby_tension_out_array {\fp_to_tl:N \l_hobby_tempc_fp}
+ \array_gpush:Nx \l_hobby_tension_in_array {\fp_to_tl:N \l_hobby_tempd_fp}
+ \array_gpush:Nx \l_hobby_excess_angle_array {\fp_to_tl:N \l_hobby_temps_fp}
+ \array_gpush:Nx \l_hobby_points_array {
x = \fp_use:N \l_hobby_tempa_fp,
y = \fp_use:N \l_hobby_tempb_fp }
- \array_push:Nx \l_hobby_points_x_array {\fp_to_tl:N \l_hobby_tempa_fp}
- \array_push:Nx \l_hobby_points_y_array {\fp_to_tl:N \l_hobby_tempb_fp}
+ \array_gpush:Nx \l_hobby_points_x_array {\fp_to_tl:N \l_hobby_tempa_fp}
+ \array_gpush:Nx \l_hobby_points_y_array {\fp_to_tl:N \l_hobby_tempb_fp}
}
\NewDocumentCommand \hobbysetparams { m } {
\keys_set:nn { hobby / read in params }
@@ -587,28 +682,196 @@ sin ( (\array_get:Nn \l_hobby_angles_array {##1})
}
}
\cs_new:Nn \hobby_set_cmds:nnn {
- \cs_set_eq:NN \hobby_moveto:n #1
- \cs_set_eq:NN \hobby_curveto:nnn #2
- \cs_set_eq:NN \hobby_close:n #3
+ \cs_gset_eq:NN \hobby_moveto:n #1
+ \cs_gset_eq:NN \hobby_curveto:nnn #2
+ \cs_gset_eq:NN \hobby_close:n #3
}
-\tl_new:N \l_tmpc_tl
\NewDocumentCommand \hobbygenpath { } {
- \hobby_genpath:
+ \array_if_empty:NF \l_hobby_points_array {
+ \hobby_gen_path:
+ }
+}
+\NewDocumentCommand \hobbygenifnecpath { m } {
+ \tl_if_exist:cTF {g_hobby_#1_path}
+ {
+ \tl_use:c {g_hobby_#1_path}
+ }
+ {
+ \hobby_gen_path:
+ }
+ \hobby_save_path:n {#1}
+ \hobby_save_path_to_aux:x {#1}
+}
+\NewDocumentCommand \hobbygenuseifnecpath { m } {
+ \tl_if_exist:cTF {g_hobby_#1_path}
+ {
+ \tl_use:c {g_hobby_#1_path}
+ }
+ {
+ \hobby_gen_path:
+ }
+ \hobby_save_path:n {#1}
+ \hobby_save_path_to_aux:x {#1}
+ \hobby_use_path:
+}
+\NewDocumentCommand \hobbyusepath { m } {
+ \hobbysetparams{#1}
+ \hobby_use_path:
+}
+\NewDocumentCommand \hobbysavepath { m } {
+ \hobby_save_path:n {#1}
+}
+\NewDocumentCommand \hobbyrestorepath { m } {
+ \tl_if_exist:cT {g_hobby_#1_path} {
+ \tl_use:c {g_hobby_#1_path}
+ }
+}
+\NewDocumentCommand \hobbyshowpath { m } {
+ \tl_if_exist:cT {g_hobby_#1_path} {
+ \tl_show:c {g_hobby_#1_path}
+ }
+}
+\NewDocumentCommand \hobbygenusepath { } {
+ \array_if_empty:NF \l_hobby_points_array {
+ \hobby_gen_path:
+ \hobby_use_path:
+ }
+}
+\NewDocumentCommand \hobbyclearpath { } {
+ \hobby_clear_path:
+}
+\tl_new:N \l_tmpc_tl
+\cs_new:Nn \hobby_use_path: {
\bool_if:NT \l_hobby_disjoint_bool {
\array_get:NnN \l_hobby_points_array {0} \l_tmpa_tl
\exp_args:No \hobby_moveto:n {\l_tmpa_tl}
}
- \prg_stepwise_inline:nnnn {1} {1} {\l_hobby_npoints_int} {
+ \int_step_inline:nnnn {1} {1} {\l_hobby_npoints_int} {
\array_get:NnN \l_hobby_controla_array {##1} \l_tmpa_tl
\array_get:NnN \l_hobby_controlb_array {##1} \l_tmpb_tl
\array_get:NnN \l_hobby_points_array {##1} \l_tmpc_tl
- \exp_args:Nooo \hobby_curveto:nnn {\l_tmpa_tl} {\l_tmpb_tl} {\l_tmpc_tl}
-}
+ \array_get:NnN \l_hobby_actions_array {##1} \l_tmpd_tl
+ \int_compare:nNnTF {\tl_item:Nn \l_tmpd_tl {1}} = {\l_hobby_draw_int} {
+ \exp_args:Nooo \hobby_curveto:nnn {\l_tmpa_tl} {\l_tmpb_tl} {\l_tmpc_tl}
+ }{
+ \bool_gset_false:N \l_hobby_closed_bool
+ \exp_args:No \hobby_moveto:n {\l_tmpc_tl}
+ }
+ \tl_if_eq:xnTF {\tl_item:Nn \l_tmpd_tl {2}} {1} {
+ \bool_gset_false:N \l_hobby_closed_bool
+ \exp_args:No \hobby_moveto:n {\l_tmpc_tl}
+ }{}
+ }
\bool_if:NT \l_hobby_closed_bool {
\array_get:NnN \l_hobby_points_array {0} \l_tmpa_tl
\exp_args:No \hobby_close:n {\l_tmpa_tl}
}
}
+\cs_new:Nn \hobby_save_path:n {
+ \tl_clear:N \l_tmpa_tl
+ \tl_put_right:Nn \l_tmpa_tl {\int_gset:Nn \l_hobby_npoints_int}
+ \tl_put_right:Nx \l_tmpa_tl {{\int_use:N \l_hobby_npoints_int}}
+ \bool_if:NTF \l_hobby_disjoint_bool {
+ \tl_put_right:Nn \l_tmpa_tl {\bool_gset_true:N}
+ }{
+ \tl_put_right:Nn \l_tmpa_tl {\bool_gset_false:N}
+ }
+ \tl_put_right:Nn \l_tmpa_tl {\l_hobby_disjoint_bool}
+ \bool_if:NTF \l_hobby_closed_bool {
+ \tl_put_right:Nn \l_tmpa_tl {\bool_gset_true:N}
+ }{
+ \tl_put_right:Nn \l_tmpa_tl {\bool_gset_false:N}
+ }
+ \tl_put_right:Nn \l_tmpa_tl {\l_hobby_closed_bool}
+ \tl_put_right:Nn \l_tmpa_tl {\array_gclear:N \l_hobby_points_array}
+ \array_map_inline:Nn \l_hobby_points_array {
+ \tl_put_right:Nn \l_tmpa_tl {
+ \array_gput:Nnn \l_hobby_points_array {##1} {##2}
+ }
+ }
+ \tl_put_right:Nn \l_tmpa_tl {\array_gclear:N \l_hobby_actions_array}
+ \array_map_inline:Nn \l_hobby_actions_array {
+ \tl_put_right:Nn \l_tmpa_tl {
+ \array_gput:Nnn \l_hobby_actions_array {##1} {##2}
+ }
+ }
+ \tl_put_right:Nn \l_tmpa_tl {\array_gclear:N \l_hobby_controla_array}
+ \array_map_inline:Nn \l_hobby_controla_array {
+ \tl_put_right:Nn \l_tmpa_tl {
+ \array_gput:Nnn \l_hobby_controla_array {##1} {##2}
+ }
+ }
+ \tl_put_right:Nn \l_tmpa_tl {\array_gclear:N \l_hobby_controlb_array}
+ \array_map_inline:Nn \l_hobby_controlb_array {
+ \tl_put_right:Nn \l_tmpa_tl {
+ \array_gput:Nnn \l_hobby_controlb_array {##1} {##2}
+ }
+ }
+ \tl_gclear_new:c {g_hobby_#1_path}
+ \tl_gset_eq:cN {g_hobby_#1_path} \l_tmpa_tl
+}
+\int_set:Nn \l_tmpa_int {\char_value_catcode:n {`@}}
+\char_set_catcode_letter:N @
+\cs_new:Npn \hobby_save_path_to_aux:n #1 {
+ \bool_if:nT {
+ \tl_if_exist_p:c {g_hobby_#1_path}
+ &&
+ ! \tl_if_exist_p:c {g_hobby_#1_path_saved}
+ }
+ {
+ \tl_clear:N \l_tmpa_tl
+ \tl_put_right:Nn \l_tmpa_tl {
+ \ExplSyntaxOn
+ \tl_gclear_new:c {g_hobby_#1_path}
+ \tl_gput_right:cn {g_hobby_#1_path}
+ }
+ \tl_put_right:Nx \l_tmpa_tl {
+ {\tl_to_str:c {g_hobby_#1_path}}
+ }
+ \tl_put_right:Nn \l_tmpa_tl {
+ \ExplSyntaxOff
+ }
+ \protected@write\@auxout{}{
+ \tl_to_str:N \l_tmpa_tl
+ }
+ \tl_new:c {g_hobby_#1_path_saved}
+ }
+}
+\char_set_catcode:nn {`@} {\l_tmpa_int}
+\cs_generate_variant:Nn \hobby_save_path_to_aux:n {x}
+\cs_new:Nn \hobby_clear_path:
+{
+\array_gclear:N \l_hobby_points_array
+\array_gclear:N \l_hobby_points_x_array
+\array_gclear:N \l_hobby_points_y_array
+\array_gclear:N \l_hobby_angles_array
+\array_gclear:N \l_hobby_actions_array
+\array_gclear:N \l_hobby_distances_array
+\array_gclear:N \l_hobby_tension_out_array
+\array_gclear:N \l_hobby_tension_in_array
+\array_gclear:N \l_hobby_excess_angle_array
+\array_gclear:N \l_hobby_matrix_a_array
+\array_gclear:N \l_hobby_matrix_b_array
+\array_gclear:N \l_hobby_matrix_c_array
+\array_gclear:N \l_hobby_matrix_d_array
+\array_gclear:N \l_hobby_vector_u_array
+\array_gclear:N \l_hobby_psi_array
+\array_gclear:N \l_hobby_theta_array
+\array_gclear:N \l_hobby_phi_array
+\array_gclear:N \l_hobby_sigma_array
+\array_gclear:N \l_hobby_rho_array
+\array_gclear:N \l_hobby_controla_array
+\array_gclear:N \l_hobby_controlb_array
+\bool_gset_false:N \l_hobby_closed_bool
+\bool_gset_false:N \l_hobby_disjoint_bool
+
+ \int_gset:Nn \l_hobby_npoints_int {-1}
+ \int_gset:Nn \l_hobby_draw_int {1}
+ \fp_gset_eq:NN \l_hobby_in_angle_fp \c_undefined_fp
+ \fp_gset_eq:NN \l_hobby_out_angle_fp \c_undefined_fp
+ \fp_gset_eq:NN \l_hobby_in_curl_fp \c_one_fp
+ \fp_gset_eq:NN \l_hobby_out_curl_fp \c_one_fp
+}
\ExplSyntaxOff
%%
%% Copyright (C) 2012 by Andrew Stacey <stacey@math.ntnu.no>